usage: alternatives -install * alternatives -remove alternatives -auto alternatives -config alternatives -display alternatives -set alternatives -list alternatives -remove-all alternatives -add-slave alternatives -remove-slave common options: -verbose -test -help -usage -version -keep-missing -altdir -admindir This may be freely redistributed under the terms of the GNU Public License. $ alternatives -help alternatives version 1.11 - Copyright (C) 2001 Red Hat, Inc. The alternatives tool can create, remove, and maintain the symbolic links of different systems. I think the easiest way to manage multiple versions of Java (or Python, or any other application in Linux) is to use the alternatives tool.
Javac and mvn returns version 8 $ javac -version javac 1.8.0_222 $ mvn -version Apache Maven 3.5.4 (Red Hat 3.5.4-5) Maven home: /usr/share/maven Java version: 1.8.0_222, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.86_64/jreĪ quick check on where each links are pointed. Java -version returns version 11 $ java -version openjdk version "11.0.7" Complications arise when I started Java development as java, javac, and mvn were pointing to different jdk packages. I had Java openjdk versions 8 and 11 which were installed on separate occasions. I had a recent trouble managing multiple Java versions installed in my Linux machine.
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